Microchip Technology

25AA040A-I/SN

25AA040A-I/SN Description

The 25AA040A-I/SN from Microchip Technology is a 4Kbit (512 x 8) SPI Serial EEPROM designed for high-performance, low-power embedded systems. Operating across a wide voltage range (1.8V to 5.5V), it supports SPI interface with a 10 MHz clock frequency, ensuring fast and reliable data transfer. The device features a 5ms write cycle time for word or page operations, making it suitable for applications requiring frequent non-volatile memory updates. Packaged in an 8-pin SOIC and compliant with RoHS3 and REACH standards, it is ideal for space-constrained designs.

25AA040A-I/SN Features

• Memory Capacity: 4Kbit (512 bytes) organized in 8-bit words.
• SPI Interface: Supports high-speed 10 MHz communication for efficient data handling.
• Wide Voltage Range: Operates from 1.8V to 5.5V, compatible with both 3.3V and 5V systems.
• Fast Write Cycle: 5ms write time for word/page operations, enhancing write endurance.
• Low Power Consumption: Optimized for battery-powered and portable devices.
• Robust Packaging: 8-pin SOIC (150mil) for surface-mount applications.
• High Reliability: 1M write cycles and 200-year data retention ensure long-term stability.
• Industrial Compliance: RoHS3, REACH Unaffected, and ECCN EAR99 certified.

25AA040A-I/SN Applications

• Embedded Systems: Configuration storage for microcontrollers (MCUs) and FPGAs.
• Consumer Electronics: Parameter storage in smart devices, wearables, and IoT sensors.
• Automotive: Non-volatile memory for infotainment and telemetry systems.
• Industrial Controls: Data logging and calibration storage in PLCs and sensors.
• Medical Devices: Secure firmware and calibration data storage in portable equipment.

Conclusion of 25AA040A-I/SN

The 25AA040A-I/SN stands out as a high-performance, low-power EEPROM with SPI interface, making it ideal for applications demanding fast writes, wide voltage compatibility, and compact packaging. Its industrial-grade reliability and long data retention make it a preferred choice for embedded, automotive, and IoT designs. With Microchip’s proven quality, this EEPROM ensures durable, efficient, and scalable memory solutions for modern electronics.